
MXene-Based Composite Materials:Synthesis and Photoelectrocatalysis for Ammonia Synthesis
Tao Sun, Tiantian Sun, Ming Lu, Wei Sun, Chunbo Liu
Prog Chem ›› 2024, Vol. 36 ›› Issue (6) : 904-913.
MXene-Based Composite Materials:Synthesis and Photoelectrocatalysis for Ammonia Synthesis
In recent years,the problems of environmental pollution and energy scarcity have affected human life,and green and low-carbon photocatalytic and electrocatalytic technologies have attracted widespread attention.Semiconductor-based photocatalytic and electrocatalytic technologies are very promising for ammonia synthesis applications.Since single semiconductors suffer from the disadvantages of low carrier separation efficiency and easy compounding,it is crucial to find co-catalysts that can enhance the performance of nitrogen fixation catalysts.Two-dimensional transition metal carbide/nitride/carbon nitride MXene,which has a promising application in photo-and electrocatalytic ammonia synthesis,is ideal for photo-and electrocatalytic nitrogen fixation owing to their good hydrophilicity,large specific surface area,excellent electrical conductivity and abundance of active sites for efficient catalysis of N2reduction.This paper mainly reviews the preparation of MXene and its composites and their progress in the field of photoelectrocatalytic ammonia synthesis.Firstly,the structural features of MXene and the preparation strategies of MXene and its complexes are briefly summarised.Secondly,the performance study of MXene-based composite catalysts for photo-and electrocatalytic ammonia synthesis is highlighted.Finally,the development direction of MXene-based composites is discussed and prospected.
1 Introduction
2 Structural features of MXene
3 Synthesis of MXene
3.1 Synthesis of pristine MXene
3.2 Synthesis of MXene-based composite structures
4 MXene for photoelectrocatalytic ammonia synthesis
4.1 Application of MXene-based systems in photocatalytic nitrogen fixation
4.2 Application of MXene-based systems in electrocatalytic nitrogen fixation
5 Conclusion and outlook
MXene / photocatalytic / electrocatalytic / ammonia synthesis
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